Fountain pen



Dec. 15, 1931. 1:, M ASHLEy 1,836,148

FOUNTAIN PEN F'ile'd Jan. 16, 1929 Patented Dec. 15, 19/31 UNITED STATESPATENT OFFICE AppIication filed January 16, 1929. Serial No. 332,863.;

My invention relates to fountain pens.

The object of my invention is to provide a fountain pen which may befilled by the use of the cap portion of the pen.

A further object is to provide a pen construction which is free-fromthreaded joints.

A further object is to provide a clip which is used as a part of a valveconstruction and 'operated in the act of filling the pen, in one l0 formof construction herein setforth.

Referring to the drawings which form apart of this specification,

Fig. 1 is a longitudinal sectional view of a pen embodying my inventionand illustratm ing a construction in which the sack constitutespractically the entire reservoir for ink, and in which the lclip is usedas a valve in the filling operation.

Fig. 2 is a longitudinal sectional view of an- `other or modified formof construction, in

which the clip is not used in the filling operation, and in which thereservoir for ink is formed partly within the casing and partly withinthe sack portions of the pen.

w Fig. 3 is a cross sectional view taken on line 3-3 of Figure 2.

1 Figa 4 is a plan view of the top end of the c 1p.

Fig. 5 is a view of the stamped blank prior to being bent into itsfinished form, as illustrated in Figure 1.'

A indicates the pen section and Bfthe outer casing which is securedthereto by a friction joint at C;- in the usual manner.

D- indicates a feed-plug constructed with the usual feed-duct D- leadingto the reservoir E. V

,F- indicates a small tube connected to the feed plug and in opencommunication with 40 the feed-duct therein by a restricted passage E. v

G indicates the pen point which is held in the usual way between the pensection and H'- indicates the cap of the pen, and is provided with theusual .cylindrical plug I'- the exposed end of which is adapted to abutthe end- 1"- of the pen section in the usual manner. f The cap H 1s madelong enough to sllde 45 feed-plug.

slightly beyond the middle portion of the pen casing, said casing beingincreased very slightly in diameter at its middle portion so that thecap will be held by friction to the casing i when used to cap the penpoint. Should the cap be made shorter, it should be made to frictionallyengage the casing when used as a cap for the pen, but it is notnecessary that it should be a tight friction fit when placedover thecasing from'the back end of 60 the casing as shown; the cap should fitthe outer casing ineasy air tight sliding relation "therewith, to act tocompress-air within the casing to deflate the sack on the inward strokeof the cap in the filling operation. l

. The cap is provided with a small hole J- located as shown, and thishole may be closed by a finger of the hand in the filling operation, asconstructed in Figure 2, or may be closed by pressing the ball end ofthe clip K- over the hole during said operation. The clip K- is made toswivel on the cap projection H- and to be held in any desired positionby the nut L- which is screwed onto said projection after beinginsertedin the space formed in the clip between the portions L-\ and L2,as will be readily understood.

The clip is made of spring metal and bends at the portion L3 thus-provi'dinga clip 8 which is short in length from the top to the ballshaped end. and yet gives a wide movementin bending at the point L8 sothat a stiffer and stronger clip may be provided due to its increasedeiiective length, as will be 85. readily understood. 4

' The principal reason for the use of the clip in the filling operationis to prevent any ink fr'om soiling the'finger, which might occur if inkShould leak thru the hole J. y 9 f A more important reason forpositioning the ball of the clip over the hole is. that in placing thecap onto the rear end of the pen when about to write. a finger mayaccidentally cover the hole and thus cause air to be compressed in thecasing and expel ink from the reservoir. v

Therefore` where I do not use the' clip in the filling operation. I makea number of 0o holes J- spaced around the circumference of the capadjacent the element I- to prevent such an accident, but thisconstruction requires all of said holes to be closed by the fingers infilling the pen, and this is not so filler is required` whereas. inFigure 1, a`

single stroke issuiiicient if the cap is made as long in proportion asillustrated in the drawings, and in this event,r no inner tube isnecessary. Where the reservoir is large, and the cap is made short inlength. a number of strokes will be necessary to fill the reservoir.

In filling the reservoir, the pen section is inserted in the inkreceptacle below the surface of the ink therein, and after closing thehole J in the cap. the cap is forced over the casing. thus trapping airin the cap and forcing it into the casing to collapse'the sack. and

on the outward stroke of the cap, the air is rarefied and ink drawn intothe reservoir as the sack expands. On the second inward stroke of thecap. the air above the surface of the ink-in the reservoir. is forcedout thru the air tube F- when the sack is deflated. a portion of the inkbeing trapped in the reservoir. and on the next expansion of the sack,

due to its resiliency. the reservoir will draw a-further supply of inkinto the reservoir, as will be readily understood.

This construction may be provided at a low cost. and may be made of anydesired material commonly used in makina' fountain pens.

.Having thus described my invention, I claim as new:

1. A fountain pen comprising a casinghavim! a hole at the end. a sacktherein. a cap adapted to cap the pen and also fitted to slide over thecasing to defiate the sack in the act of filling the pen. said caphaving a hole therein` al clip for said cap the free end of which islocatedl over said hole and adapted to close the same.

2. A fountain pen comprising a casing having a hole at the end and a pensection, a feed plug in said section, a rubberv sack, a cap adapted tocap the pen and also fitted to slide over the casing in direct contacttherewith to deflate the sack in the act of filling the pen; aycylindrical plug` in the closed end of the cap, the one end of whichserves as an abutment for limiting mounting movement of the cap on thecasing and pen'section, and said cap having a hole in its side walladjacent to and outwardly 'of said abutment, and means carried bythe'cap for manually closing said hole.

3. As stated in claim 2; and an air escape the pen, and means carried bythe cap adapted to abut the end of the pen section, said cap having ahole in its side adjacent the end of said means. v

5. As stated in claim 4; and a spring c11p carried by the cap to closesaid hole 1n its side.,

In testimony whereof I have aiiixed my signature.

FRANK M. ASHLEY.

